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The USB Dev MSC Example will show up as an unformatted drive to the Host PC. Windows should offer to format it right away. Hock Leong Ang12 年多前in reply toNorman Wong Intellectual310points Hi TI Engineers, Could you advise how...
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USB传输类型,分为:控制传输(control)、中断传输(interrupt)、等时传输(isochronous)、批量传输(bulk)。 其中控制传输和批量传输又称为非周期性传输方式(nonperiodic),而中断传输和等时传输称为周期性传输方式(periodic)。 批量传输:主要应用在数据大量数据传输和接受数据上同时又没有带宽和间隔时间要求的情况下。特点:...
对于批量 IN 传输请求,请调用WdfRequestRetrieveOutputMemory方法。 对于批量 OUT 传输请求,请调用WdfRequestRetrieveInputMemory方法。 客户端驱动程序不需要释放此内存。 内存与父请求对象相关联,并在释放父对象时释放。 步骤2:格式化框架请求对象并将其发送到 USB 驱动程序堆栈 ...